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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Journal of Tropical Soils Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)

Budi Nugroho

Departemen Ilmu Tanah Dan Sumbedaya Lahan, Fakultas Pertanian IPB, Jl. Meranti Kampus IPB Dramaga Bogor 16680

Author-ID : 2450608

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

Published : 15 Documents Claim Missing Document

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Articles

Title

Dinamika Fraksi Fosfor dan Sifat Kimia Tanah Sawah Terkait Indeks Pertanaman Padi Sawah dan Praktik Pengairan: Dynamics of Phosphorus Fractions and Chemical Properties of Paddy Soils as related to Paddy Rice Cropping Index and Irrigation Practices Untung Sudadi; Laode Muhamad Asdiq Hamsin Ramadhan; Budi Nugroho; Arief Hartono
Jurnal Ilmu Tanah dan Lingkungan Vol 19 No 1 (2017): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Dinamika fraksi-fraksi P dan sifat kimia lainnya pada tanah sawah terkait dengan indeks pertanaman padi sawah (IP) dan kadar air tanah pada kondisi lapang (KAL). Penelitian eksploratif ini bertujuan mengevaluasi pengaruh IP berbeda yang direpresentasikan oleh dosis ameliorasi dan pemupukan serta KAL sebagai representasi praktik pengairan yang diaplikasikan oleh petani pada tanah sawah penelitian terhadap dinamika fraksi P, sifat kimia tanah lainnya dan produksi padi sawah. Contoh tanah komposit diambil pada lahan sawah yang sedang dibudidayakan petani dengan IP 100%, 200% dan 300% pada periode 7, 9, 11 dan 13 minggu setelah penggenangan awal. Fraksionasi P dilakukan untuk memperoleh fraksi PH2O, PNaHCO3-inorganik (Pi), PNaHCO3-organik (Po), PNaOH-Pi, PNaOH-Po dan PHCl tanah. Nilai KAL pada keempat waktu pengambilan contoh tanah pada IP 100% < IP 200% ≈ IP 300%. Sifat-sifat kimia dan fraksi-fraksi Po pada IP 100% cenderung menurun, sedangkan fraksi-fraksi Pi cenderung meningkat dengan peningkatan KAL. Dinamika fraksi-fraksi P tanah pada ketiga IP terutama ditentukan oleh Corg. Peningkatan Corg tanah menurunkan kadar Pi pada IP 100% dan Po pada IP 200%, tetapi meningkatkan Pi pada IP 300%. Penurunan dosis P2O5 dan peningkatan dosis jerami menurunkan Eh tanah. Faktor yang paling berpengaruh terhadap produksi padi sawah adalah KAL. Kata kunci : Pupuk P, jerami padi, kadar air lapang tanah, fraksi P tanah

Uji Kelarutan Si Tersedia pada Trass Bakar dan Non Bakar: Experiment of Silica Solubility Availabilityon Fuel and Non Fuel Trass Mirawanty Amin; Budi Nugroho; Dyah Tjahyandari Suryaningtyas
Jurnal Ilmu Tanah dan Lingkungan Vol 21 No 1 (2019): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

This research was conducted to determine the available Si between burned trass and unburned trass, also to determine the best formula to be used as silica fertilizer. This research was conducted at the Laboratory of Soil Chemistry and Fertility, Department of Soil Science and Land Resources, Faculty of Agriculture, IPB University. The experimental design was the split-plot with the main plot consisted of burned trass and unburned trass, and the subplot consisted of combination dosage of trass and CaCO3, those were 100% trass, 83.33% trass + 16.67 CaCO3, 66.67.% trass + 33.33% CaCO3, each treatment was replicated three times, resulting in 18 experiment units. The result showed that the burned trass showed the highest available Si compared to the unburned trass. The combination of 83% trass + 17% CaCO3 showed the highest available Si of those were 120.02 ppm, 72.67 ppm and 53.43 ppm, respectively with extractant of ammonium acetate pH 4.8, 0.5 M HCl and H2O. Keywords:

Karakteristik Kimia dan Fisika Tanah di Area Pertanaman Nanas dengan Perbedaan Tingkat Produksi: Soil Chemical and Physical Characteristics in Pineapple Plantation with Different Rate of Yield Rina Natalia; Syaiful Anwar; Atang Sutandi; Budi Nugroho; Priyo Cahyono
Jurnal Ilmu Tanah dan Lingkungan Vol 20 No 1 (2018): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Differences in productivity were observed in various land units on pineapple plantation in Central Lampung even with the same land and fertilization management. The nature of soil chemical and physical variability were thought to be the cause of these differences. The study was aimed to compare chemical and physical soil properties in land units with different pineapple productivity. Soil samples were taken from 6 units of land with low and 3 units of land with high productivity. The soil chemical properties measured include available P and K, potential P and K, total N, pH, organic C, exchangeable cations, and available micro nutrients. The soil physical properties determined include bulk density, soil texture, and penetration resistance. The data was analyzed using T-test and correlation. The T-test revealed that the high productivity soils were significantly lower in available P, potential P, total N, and available Zn compared to the productivity soils. Furthermore, the high productivity soils were significantly lower in bulk density and penetration resistances both vertically and horizontally. There were significantly negative correlations between pineapple yields with potential P, available Zn, bulk density, and penetration resistance both vertically and horizontally. Overall analyses indicating that the physical properties were more as productivity determinant, particularly bulk density and penetration resistance, compared to the chemical properties. The chemical properties were more as residual conditions after nutrient absorption process to support pineapple productivity. In order to increase the productivity, it is necessary to manage the soil to lower bulk density and penetration resistance.

Substitusi Sebagian Pupuk Kimia dengan Pupuk Organik Hayati pada Jagung (Zea mays): Partly Substitution of Chemical Fertilizer with Bio-organic Fertilizer on Maize (Zea mays) Syah Deva Ammurabi; Iswandi Anas; Budi Nugroho
Jurnal Ilmu Tanah dan Lingkungan Vol 22 No 1 (2020): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.22.1.10-15

High amount of chemical fertilizer application simultanously caused soil degradation and environmental pollution. Bio-organic fertilizer application increases nutrient availability, improve soil properties, promote plant growth and increase yield. This study aims to understand effects of chemical fertilizer substitution with bio-organic fertilizer application on growth, uptake of N, P, K, and agronomic efficiency of maize in vegetative phase. Pot experiment was conducted at IPB Cikabayan Experimental Station, Dramaga, Bogor. Laboratory analysis was done at Department of Soil Science Laboratory, Faculty of Agriculture, Bogor Agricultural University (IPB). Randomized Block Design with single factor was used in this experiment. The treatments were: Control, POH (bio-organic fertilizer only), POH + 50% (NPK), POH + 100% (NPK), 50% (NPK) , and 100% (NPK). Bisma maize variety was used as plant indicator. Five weeks after transplanting, the biomass (shoot and roots) biomass ware harvested. NPK uptake analysis was performed to shoot samples. Results showed that bio-organic fertilizer application reduced the rate of chemical fertilizer by 50% and increase N, P, and K uptake. Combination between bio-organic fetilizer and 50% chemical fertilizer had the highest agronomic efficiency. Bio-organic fertilizer substitute 50% chemical fertilizer of maize.

Dinamika Pelepasan Nitrogen Empat Jenis Pupuk Urea Pada Kondisi Tanah Tergenang: Dynamics of Nitrogen Release by Four Types of Urea in Flooded Conditions Arief Hartono; Budi Nugroho; Desi Nadalia; Afifah Ramadhani
Jurnal Ilmu Tanah dan Lingkungan Vol 23 No 2 (2021): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.23.2.66-71

Pupuk urea merupakan sumber hara nitrogen (N) yang paling banyak digunakan di Indonesia, termasuk pada lahan sawah. Urea merupakan pupuk N yang larut air sehingga penggunaan urea di sawah perlu dikaji dalam hubungannya dengan pelepasan pupuk. Di dalam penelitian ini digunakan urea dengan formulasi berbeda yaitu pupuk urea Kujang dan Pupuk Sriwijaya (Pusri) yang merupakan urea konvensional dan urea prill dan granul yang merupakan urea modifikasi yang mengandung formaldehida masing-masing 0.10 dan 0.50%. Tujuan penelitian ini adalah untuk mengevaluasi pelepasan N dari tipe urea konvensional dan urea yang diberi formaldehida pada kondisi tanah tergenang. Metode penelitian yang digunakan adalah inkubasi dan pencucian. Inkubasi dilakukan selama 7, 14, 28, 45, 60, dan 90 hari serta dilakukan pencucian pada setiap akhir masa inkubasi. Hasil pencucian ditetapkan kandungan amonium dan nitrat. Hasil penelitian menunjukkan bahwa pelepasan N dalam bentuk amonium dan nitrat antar perlakuan pupuk urea tidak berbeda nyata. Hasil total N tercuci menunjukkan nilai paling tinggi diperoleh oleh urea granul sebesar 78.0 mg tabung-1, kemudian disusul oleh urea prill 75.2 mg tabung-1, urea kujang sebesar 71.5 mg tabung-1, dan urea pusri sebesar 68.4 mg tabung-1. Berdasarkan hasil persamaan first order kinetic, diperoleh nilai pelepasan maksimum dan konstanta kecepatan. Nilai pelepasan maksimum tertinggi dimiliki oleh urea granul sebesar 94.6 mg tabung-1, kemudian urea prill sebesar 88.3 mg tabung-1, urea Pusri sebesar 82.3 mg tabung-1, dan urea Kujang sebesar 79.2 mg tabung-1. Sementara untuk nilai konstanta kecepatan, konstanta kecepatan tertinggi diperoleh pada urea kujang sebesar 0.0349 hari-1, kemudian dilanjutkan oleh urea prill dan pusri sebesar 0.0256 hari-1, dan urea granul sebesar 0.0253 hari-1. Hasil penelitian menunjukkan bahwa urea yang diperlakukan dengan formaldehida terutama dalam bentuk granul cenderung memiliki kemampuan untuk memperlambat proses pelepasan N yang ditunjukkan dengan nilai konstanta kecepatan pelepasan N yang paling rendah.

Respon Spektral Tajuk Jagung pada beberapa Perlakuan Pemupukan: Spectral Response of Maize Canopy to Several Fertilization Treatments Muhammad Ardiansyah; Budi Nugroho; Arival Al-Fajar
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.1.25-31

Early detection of plant nutrient status during the maize cycle is important to prevent yield loss and to optimize yield and quality. This study was conducted to analyze the spectral response of the maize canopy to 10 fertilization treatments including control using a spectroradiometer. In this study, the relationship between nutrient content and spectral response was focused on leaf N levels, which were analyzed at 4 and 8 weeks after planting (WAP). Simple and multiple linear regression models were developed to study this relationship, both models based on wavelength spectrum and selected wavelength to see the relationship between spectral reflectance and leaf N content. In general, the spectral response pattern of maize canopy for each treatment at 4 and 8 WAP was similar, where the reflectance of 4 WAP being lower than 8 WAP for all wavelengths. Leaf N levels could be identified at the green wavelength of 555 nm, which was indicated by the lowest reflectance at 4 WAP and high at 8 WAP for treatment of 1 standard (STD) or the highest N dose. The low reflectance of the 555 nm wavelength of this treatment indicated that the N content in the leaves was higher at 4 WAP than 8 WAP. The red, green, and red-edge wavelengths at 4 WAP and 8 WAP showed a moderate to very strong relation with leaf N content with a coefficient of determination (R2) greater than 0.40. The very strong model was shown by the multiple regression model between the combination of blue, green, red, red-edge, and near-infrared spectrum for leaf N levels for both 4 WAP and 8 WAP. The selected wavelength-based model found that the relationship was very strong shown by the wavelength of 671 nm.

Estimasi Kadar Klorofil Dan Kadar N Daun Jagung Menggunakan Chlorophyll Content Index: Estimating Chloorophyll and N Content in Corn Leaves Based on Chlorophyll Content Index Muhammad Ardiansyah; Budi Nugroho; Khalimatus Sa'diyah
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 2 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.2.53-61

The chlorophyll content is related to the condition of the plant so that it can be used to estimate nutrient content in plants. The conventional measurement of leaf chlorophyll content is time consuming and expensive, so a fast and efficient technology is needed. This study aims to (a) analyze the chlorophyll content index (CCI) and leaf chlorophyll content in 10 fertilizer dosage treatments including control and several growth phases of corn, (b) analyze the relationship between CCI and leaf chlorophyll content, and (c) analyze the relationship between CCI and N content. In this study, the CCI was measured with a chlorophyll meter, while the chlorophyll content and N content of leaves were measured using a spectrophotometer and the Kjehdahl method, respectively. The relationship between CCI on chlorophyll content and N content was analyzed at 4 and 8 weeks after planting (WAP) using a simple linear regression model. The results showed that the CCI curve pattern in all dosage treatments was similar as indicated by the CCI increasing with increasing plant age and then decreasing with plant aging. Fertilizer dose had a significant effect on CCI except at 2 and 3 WAP, where the highest CCI was found at fertilizer doses with high nutrient adequacy, i.e. 2 Ultra Gen (UG) + 2/3 Standard (STD) at 7 MST. The CCI and chlorophyll content had a positive linear relationship at 4 WAP and 8 WAP with a strong (r = 0.67) and very strong (r = 0.76) correlation. The relationship model between CCI and leaf N content showed a very strong positive correlation at 8 WAP with the equation N (%) = 0.019*CCI + 1.795 (r = 0.75). These results indicate that the measurement of the CCI with a chlorophyll meter can be used to estimate the N nutrient status of plant leaves properly.

Pembuatan Pupuk Kalium Silikat Berbahan Dasar Pasir Kuarsa dari Bangka Arief Hartono; Budi Nugroho; Feabri Kurniawan Edwar
Jurnal Ilmu Tanah dan Lingkungan Vol 25 No 1 (2023): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.25.1.19-24

One of the efforts to utilize the potential for quartz sand (SiO2) is through the manufacture of potassium silicate (K2SiO3) fertilizer, by reacting SiO2 in quartz sand with potassium hydroxide (KOH). This study aimed to obtain the optimal temperature in the manufacture of K2SiO3 fertilizer by mixing quartz sand from Bangka with KOH. Furthermore, the study aimed to evaluate the solubility of fertilizer in the soil and its effect on soil pH, exchangeable aluminum (exchangeable Al), exchangeable potassium (exchangeable K), and available silica (Si) through incubation experiment on Ultisol Darmaga. The results showed that the highest K content in the form of potassium oxide (K2O) was at 1000 oCelcius (oC) with a content of 66.9%, while the lowest was at 700 oC with a content of 55.1%. In contrast, the Si content in the form of SiO2 at a temperature of 1000 oC was very low. The highest SiO2 content of K2SiO3 fertilizer at a temperature of 800oC was 35.1%. The most optimal K2SiO3 fertilizer from this study was at a temperature of 800 oC with a content of 60.0% K2O and 35.1% SiO2. The incubation experiment showed that the K2SiO3 with the rate of 2.50% was the most effective rate because it increased the exchangeable K, available Si, soil pH to relatively neutral and also reduced the exchangeable Al.

Co-Authors . Anandyawati Afifah Ramadhani Arival Al-Fajar Atang Sutandi Basuki Sumawinata Dedi Nursyamsi Desi Nadalia Dyah Tjahyandari Suryaningtyas Enok Sumarsih Fahmi Arief Rahman Feabri Kurniawan Edwar Hartono, Arif Heru Bagus Pulunggono Iswandi Anas Khalimatus Sa'diyah Laode Muhamad Asdiq Hamsin Ramadhan M. Joehari Jamili Mirawanty Amin Mirawanty Amin Muhammad Ardiansyah Muhammad Ardiansyah Natalia Desy Djata Ndua Priyo Cahyono RAHAYU WIDYASTUTI Rina Natalia Siti Nurzakiah Sri Djuniwati Sudadi, Untung Supiandi Sabiham Suwarno, Suwarno Syah Deva Ammurabi Syaiful Anwar

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